public class Test04 {
    // 取余 求模
    public static void main(String[] args) {
        int a = 5;
        int b = 2;

        int c = a % b;
        System.out.println(c);

        // 有 189元
        // 求: 最少使用多少张纸币可以凑成189元
        // 100 * 1;  50 * 1; 20 * 1;10 * 1; 5 * 1; 1 * 4;
        int money = 189; // 一共189元
        int money100 = money / 100; // 求出了 189 需要多少张100
        money = money % 100; // 剩下的钱
        int money50 = money / 50;
        money = money % 50;

        int money20 = money / 20;
        money = money % 20;

        int money10 = money / 10;
        money = money % 10; // money %= 10

        int money5 = money / 5;
        money = money % 5; //money == 4

        System.out.println("189元最少由:"
                + money100 + "张100元,"
                + money50 + "张50元,"
                + money20 + "张20元,"
                + money10 + "张10元,"
                + money5 + "张5元,"
                + money + "张1元 组成");


    }
}
